- 2009
- 2010
- 2011
- 2012
- 2013
- 2014
- 2015
- 2016
- 2017
- 2018
- 2019
- Arctotis acaulis
- Citrus limon ‘Meyer’
- Diospyros kaki
- Echeveria derenbergii
- Malus x purpurea ‘Neville Copeman
- Medinilla magnifica
- Prunus armeniaca
- Prunus domestica ‘Marjorie’s Seedling’
- Punica granatum
- Quercus robur
- Shirley Richards
- Solanum-melongena-‘Moneymaker’
- Zantedeschia aethiopica